Donkey, you may or may not be aware that internet anonymity offers no protection against libel and that if RR decided to bring a case against against you then the administrators of this site would be legally compelled to help identify you. You may or may not also be aware that in a libel case it would not be up to RR to prove that you libeled them, but it would be up to you to prove that you have not.
I'd suggest you rethink your post, but it's your call.